US11399321B2 - Devices and methods for dynamic RACH - Google Patents
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- US11399321B2 US11399321B2 US16/487,390 US201816487390A US11399321B2 US 11399321 B2 US11399321 B2 US 11399321B2 US 201816487390 A US201816487390 A US 201816487390A US 11399321 B2 US11399321 B2 US 11399321B2
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Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/008—Transmission of channel access control information with additional processing of random access related information at receiving side
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
Definitions
- Embodiments pertain to systems, methods, and component devices for wireless communications, and particularly to device access and associated operations in Third Generation Partnership Project (3GPP) communication systems.
- 3GPP Third Generation Partnership Project
- FIG. 2 describes a method for dynamic random access channel (RACH) operation in accordance with some embodiments.
- Method 400 begins with operation 405 to decode an RRCConnectionReconfiguration communication from a base station, the RRCConnectionReconfiguration communication comprising an information element indicating a handover operation and a dynamic dedicated random access channel (RACH) configuration (RACH-ConfigDedicated) information element, the RACH-ConfigDedicated information element comprising a plurality of dedicated random access parameters.
- Operation 410 then involves taking the decoded RRCConnectionReconfiguration communication using the included information to set up the handover operation using the plurality of dedicated random access parameters from the RACH-ConfigDedicated information element.
- the handover operations are then performed in operation 415 , and may include any handover operations described herein. This may include an incomplete dynamic RACH process with a fallback operation, a complete dynamic RACH process, or any other such described operations.
- Example 1 may include a dynamic random access channel (RACH) signal via a handover (HO) command.
- RACH dynamic random access channel
- HO handover
- Example 28 the subject matter of any one or more of Examples 15-27 optionally include wherein the configuration communication comprises a Physical Downlink Control Channel (PDCCH) communication; and wherein the processing circuitry is further configured to monitor a PDCCH for the configuration communication.
- the configuration communication comprises a Physical Downlink Control Channel (PDCCH) communication
- the processing circuitry is further configured to monitor a PDCCH for the configuration communication.
- PDCCH Physical Downlink Control Channel
- Example 29 the subject matter of any one or more of Examples 15-28 optionally include-8 further comprising: radio frequency circuitry coupled to the processing circuitry; and one or more antennas coupled to the radio frequency circuitry and configured to receive the configuration communication from the base station.
- Example 30 the subject matter of Example 29 optionally includes wherein the one or more antennas are configured to receive a plurality of network beams; wherein the processing circuitry is further configured to determine that a first network beam of the plurality of network beams has a highest measured signal and to initiate an indication associated with the first network beam to the base station; and wherein the configuration communication is received via the first network beam until the UE receives a random access response (RAR) message.
- RAR random access response
- Example 65 is an apparatus of a user equipment (UE), the apparatus comprising: a memory configured to store an RRCConnectionReconfiguration communication from a base station, the RRCConnectionReconfiguration communication comprising an information element indicating a handover operation and a dynamic dedicated random access channel (RACH) configuration (RACH-ConfigDedicated) information element, the RACH-ConfigDedicated information element comprising a plurality of dedicated random access parameters; and processing circuitry coupled to the memory and configured to: decode the RRCConnectionReconfiguration communication from the base station to identify the plurality of dedicated random access parameters; and set up the handover operation using the plurality of dedicated random access parameters from the RACH-ConfigDedicated information element.
- RACH dynamic dedicated random access channel
- Example 70 the subject matter of any one or more of Examples 65-69 optionally include-55 wherein the information element indicating the handover operation comprises a MobilityInfo or a MobilityControlInfo information element.
- Example 73 the subject matter of any one or more of Examples 65-72 optionally include wherein an end to the RACH procedure is indicated by the base station in terms of a source cell system frame number (SFN).
- SFN source cell system frame number
- any combination of operations or elements described above may be integrated into various embodiments described herein. Additionally, other example embodiments may include any examples described above with the individual operations or device elements repeated or ordered with intervening elements or operations in any functional order.
- the computer system machine 700 can additionally include a mass storage device 716 (e.g., a drive unit), a signal generation device 718 (e.g., a speaker), an output controller 732 , a power management controller 734 , a network interface device 720 (which can include or operably communicate with one or more antennas 730 , transceivers, or other wireless communications hardware), and one or more sensors 728 , such as a Global Positioning System (GPS) sensor, compass, location sensor, accelerometer, or other sensor.
- GPS Global Positioning System
- machine-readable medium 722 is illustrated in an example embodiment to be a single medium, the term “machine-readable medium” can include a single medium or multiple media (e.g., a centralized or distributed database, and/or associated caches and servers) that store the one or more instructions 724 .
- the term “machine-readable medium” shall also be taken to include any tangible medium that is capable of storing, encoding, or carrying instructions (e.g., the instructions 724 ) for execution by the machine and that cause the machine to perform any one or more of the methodologies of the present disclosure, or that is capable of storing, encoding, or carrying data structures utilized by or associated with such instructions.
- the volatile and non-volatile memory and/or storage elements may be a Random Access Memory (RAM), Erasable Programmable Read-Only Memory (EPROM), flash drive, optical drive, magnetic hard drive, or other medium for storing electronic data.
- RAM Random Access Memory
- EPROM Erasable Programmable Read-Only Memory
- the base station and UE may also include a transceiver module, a counter module, a processing module, and/or a clock module or timer module.
- One or more programs that may implement or utilize the various techniques described herein may use an application programming interface (API), reusable controls, and the like. Such programs may be implemented in a high-level procedural or object-oriented programming language to communicate with a computer system. However, the program(s) may be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language, and combined with hardware implementations.
- API application programming interface
- the baseband circuitry 804 may include circuitry such as, but not limited to, one or more single-core or multi-core processors.
- the baseband circuitry 804 may include one or more baseband processors or control logic to process baseband signals received from a receive signal path of the RF circuitry 806 and to generate baseband signals for a transmit signal path of the RF circuitry 806 .
- the baseband circuitry 804 may interface with the application circuitry 802 for generation and processing of the baseband signals and for controlling operations of the RF circuitry 806 .
- the RF circuitry 806 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium.
- the RF circuitry 806 may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network.
- the RF circuitry 806 may include a receive signal path which may include circuitry to down-convert RF signals received from the FEM circuitry 808 and provide baseband signals to the baseband circuitry 804 .
- the RF circuitry 806 may also include a transmit signal path which may include circuitry to up-convert baseband signals provided by the baseband circuitry 804 and provide RF output signals to the FEM circuitry 808 for transmission.
- FIG. 10 is an illustration of a control-plane protocol stack in accordance with some embodiments.
- a control plane 1000 is shown as a communications protocol stack between the UE 101 (or alternatively, the UE 102 ), the macro RAN node 111 (or alternatively, the LP RAN node 112 ), and the MME 121 .
- a General Packet Radio Service (GPRS) Tunneling Protocol for the user plane (GTP-U) layer 1104 may be used for carrying user data within the GPRS core network and between the radio access network and the core network.
- the user data transported can be packets in any of IPv4, IPv6, or PPP formats, for example.
- a UDP and IP security (UDP/IP) layer 1103 may provide checksums for data integrity, port numbers for addressing different functions at the source and destination, and encryption and authentication of the selected data flows.
- an RRC entity 1300 may transition from one of the states in the set consisting of NR RRC Idle 1425 , E-UTRA RRC Idle 1430 , UTRA_Idle 1435 , and GSM_Idle/GPRS_Packet_Idle 1440 , which may be termed idle states, to another state in the same set via a cell reselection transition 1480 .
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
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US16/487,390 US11399321B2 (en) | 2017-03-17 | 2018-03-15 | Devices and methods for dynamic RACH |
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EP (1) | EP3596994A4 (zh) |
CN (2) | CN116887361A (zh) |
WO (1) | WO2018170300A1 (zh) |
Cited By (1)
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US20210195481A1 (en) * | 2018-09-27 | 2021-06-24 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for Handover Report and Terminal Device |
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CN116887361A (zh) | 2017-03-17 | 2023-10-13 | 苹果公司 | 用于动态rach的设备和方法 |
CN110603742A (zh) * | 2017-05-05 | 2019-12-20 | 摩托罗拉移动有限责任公司 | 指示波束切换请求 |
CN110892786B (zh) * | 2017-07-20 | 2022-04-22 | 中兴通讯股份有限公司 | 上行链路载波配置 |
US10999871B2 (en) * | 2018-06-08 | 2021-05-04 | Qualcomm Incorporated | Random access procedure for CV2X |
US11412422B2 (en) * | 2019-03-14 | 2022-08-09 | Ofinno, Llc | Handover in unlicensed band |
US20220150774A1 (en) * | 2019-03-28 | 2022-05-12 | Google Llc | Handover during secondary cell group failure |
CN113055931A (zh) * | 2019-12-27 | 2021-06-29 | 夏普株式会社 | 由用户设备执行的随机接入报告方法和用户设备 |
US20210392692A1 (en) * | 2020-06-12 | 2021-12-16 | Qualcomm Incorporated | Dynamic rach msg1/msga configuration |
US11442976B1 (en) * | 2021-06-21 | 2022-09-13 | Workday, Inc. | Resource selection determination using natural language processing based tiered clustering |
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Cited By (2)
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US11665601B2 (en) * | 2018-09-27 | 2023-05-30 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for handover report and terminal device |
Also Published As
Publication number | Publication date |
---|---|
WO2018170300A1 (en) | 2018-09-20 |
CN110574480B (zh) | 2023-09-01 |
US20220361064A1 (en) | 2022-11-10 |
US20200029259A1 (en) | 2020-01-23 |
CN110574480A (zh) | 2019-12-13 |
EP3596994A4 (en) | 2020-11-25 |
EP3596994A1 (en) | 2020-01-22 |
CN116887361A (zh) | 2023-10-13 |
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